Abstract
The concentration and composition of fungal spora were examined in control homes and homes with a wet extraction cleaning intervention, in Perth, Western Australia. Outdoor air and infiltration were the primary source of fungi indoors, in both the test and control homes, confirmed by species identification which showed Penicillium, Cladosporium, Alternaria, Aspergillus, Botrytis and yeasts the most common and widespread fungal taxa recovered indoors and outdoors. Continual maintenance of the carpet ensures incoming fungal and particulate sources are continually removed from the carpet surface, therefore maintaining a stable fungal spora within the indoor environment.